Weather in Seattle in October
As an Amazon Associate we earn from qualifying purchases. We also earn commission from other retail partners. Links below are affiliate links.
Book now, pay at pickup — compare Hertz, Avis, Budget, Sixt and 800+ rental companies for October in Seattle.
Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youSeattle in October is cool — daytime temperatures average 15.4°C, dropping to 9.4°C at night. The month is fairly wet (13 rainy days on average), with roughly 6.3 hours of sunshine a day. This is peak season for good reason — conditions are close to ideal. For the complete picture, see the best time to visit Seattle — every month compared. Once you know when to go, find your Seattle packing list at 247PackingList.
Get ready for Seattle in October
Search flights to Seattle
Compare 100+ airlines for October — one search, best price.
Search Flights →Travel clothing layers
Pack layers — temperatures can vary significantly between day and night.
Check Price →What to pack for Seattle in October
- Warm layers
- Light jacket or fleece
- Comfortable walking shoes
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
Compare all months in Seattle
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 8.3°C | 216.0mm | 8/10 |
| February | 8.0°C | 104.8mm | 9/10 |
| March | 10.2°C | 82.6mm | 10/10 |
| April | 13.3°C | 73.7mm | 10/10 |
| May | 17.4°C | 64.7mm | 10/10 |
| June | 20.9°C | 58.6mm | 10/10 |
| July | 24.6°C | 8.0mm | 10/10 |
| August | 24.9°C | 21.5mm | 10/10 |
| September | 21.3°C | 66.1mm | 10/10 |
| October | 15.4°C | 104.4mm | 9/10 |
| November | 10.0°C | 174.8mm | 9/10 |
| December | 7.6°C | 184.1mm | 9/10 |
Full month-by-month guide: best time to visit Seattle →
For facts about United States — currency, language and dialling code — see our United States country guide at 247CountryInfo. Travellers also find it useful to keep a Seattle travel guide to hand. Check clothing sizes in United States before you shop.
Frequently Asked Questions
Is October a good time to visit Seattle?
October rates 9/10 for visiting Seattle — excellent time to visit. Expect average highs of 15.4°C, 104.4mm of rain across the month and about 6.3 hours of daily sunshine.
What is the temperature in Seattle in October?
In October, Seattle has average highs of 15.4°C (59.7°F) and average lows of 9.4°C (48.9°F).
Does it rain in Seattle in October?
Some rain is likely. Seattle averages 104.4mm across about 13 rainy days in October, so a light waterproof layer is worth packing.
What should I wear in Seattle in October?
For Seattle in October (15.4°C highs / 9.4°C lows), pack warm layers plus light jacket or fleece, comfortable walking shoes, compact travel umbrella.
More essentials for Seattle in October
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
Check Price →Last updated:
Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.